| Kessig Naturalist // Lord of the UlvenwaldInnistrad: Midnight Hunt · 310 | Innistrad: Midnight Hunt | 310 | Uncommon | €0.15 |
| Kessig Prowler // Sinuous PredatorEldritch Moon · 163 | Eldritch Moon | 163 | Uncommon | €0.13 |
| Kessig RecluseDark Ascension · 121 | Dark Ascension | 121 | Common | €0.11 |
| Kessig WolfInnistrad · 151 | Innistrad | 151 | Common | €0.06 |
| Kessig WolfriderInnistrad: Double Feature · 432 | Innistrad: Double Feature | 432 | Rare | $0.21 |
| Kessig WolfriderInnistrad: Crimson Vow Promos · 165s | Innistrad: Crimson Vow Promos | 165s | Rare | $0.55 |
| Kessig WolfriderInnistrad: Crimson Vow · 165 | Innistrad: Crimson Vow | 165 | Rare | €0.17 |
| Kessig WolfriderInnistrad: Crimson Vow · 379 | Innistrad: Crimson Vow | 379 | Rare | €0.21 |
| Kessig WolfriderMagic Online Promos · 95361 | Magic Online Promos | 95361 | Rare | — |
| Kessig Wolf RunCommander 2020 · 284 | Commander 2020 | 284 | Rare | $0.43 |
| Kessig Wolf RunCommander Legends: Battle for Baldur's Gate · 898 | Commander Legends: Battle for Baldur's Gate | 898 | Rare | €0.33 |
| Kessig Wolf RunInnistrad · 243 | Innistrad | 243 | Rare | $0.59 |
| Kessig Wolf RunThe Lost Caverns of Ixalan Commander · 340 | The Lost Caverns of Ixalan Commander | 340 | Rare | €0.15 |
| Kessig Wolf RunModern Horizons 3 Commander · 352 | Modern Horizons 3 Commander | 352 | Rare | €0.33 |
| Kessig Wolf RunMurders at Karlov Manor Commander · 269 | Murders at Karlov Manor Commander | 269 | Rare | €0.08 |
| Kessig Wolf RunMarch of the Machine Commander · 410 | March of the Machine Commander | 410 | Rare | €0.39 |
| Kessig Wolf RunNew Capenna Commander · 411 | New Capenna Commander | 411 | Rare | $0.42 |
| Kessig Wolf RunSecret Lair Drop Tokens · 355 | Secret Lair Drop Tokens | 355 | Rare | €13.27 |
| Kessig Wolf RunTarkir: Dragonstorm Commander · 375 | Tarkir: Dragonstorm Commander | 375 | Rare | €0.34 |
| Kessig Wolf RunFrom the Vault: Twenty · 20 | From the Vault: Twenty | 20 | Mythic Rare | €1.21 |
| Kestia, the CultivatorCommander 2018 · 42 | Commander 2018 | 42 | Mythic Rare | €0.40 |
| Kestia, the CultivatorTreasure Chest · 70699 | Treasure Chest | 70699 | Mythic Rare | — |
| Kethek, Crucible GoliathPhyrexia: All Will Be One · 206 | Phyrexia: All Will Be One | 206 | Rare | €0.08 |
| Kethek, Crucible GoliathPhyrexia: All Will Be One · 319 | Phyrexia: All Will Be One | 319 | Rare | €0.21 |
| Kethek, Crucible GoliathPhyrexia: All Will Be One · 465 | Phyrexia: All Will Be One | 465 | Rare | €1.00 |
| Kethek, Crucible GoliathPhyrexia: All Will Be One Promos · 206p | Phyrexia: All Will Be One Promos | 206p | Rare | €0.25 |
| Kethek, Crucible GoliathPhyrexia: All Will Be One Promos · 206s | Phyrexia: All Will Be One Promos | 206s | Rare | $0.47 |
| Kethis, the Hidden HandCore Set 2020 · 211 | Core Set 2020 | 211 | Mythic Rare | €3.01 |
| Kethis, the Hidden HandCore Set 2020 Promos · 211p | Core Set 2020 Promos | 211p | Mythic Rare | €5.64 |
| Kethis, the Hidden HandCore Set 2020 Promos · 211s | Core Set 2020 Promos | 211s | Mythic Rare | €7.21 |
| Kethis, the Hidden HandThe List Tokens · M20-211 | The List Tokens | M20-211 | Mythic Rare | €2.05 |
| Ketramose, the New DawnAetherdrift · 209 | Aetherdrift | 209 | Mythic Rare | $3.37 |
| Ketramose, the New DawnAetherdrift · 350 | Aetherdrift | 350 | Mythic Rare | $3.62 |
| Ketramose, the New DawnAetherdrift · 482 | Aetherdrift | 482 | Mythic Rare | €20.02 |
| Ketramose, the New DawnAetherdrift · 549 | Aetherdrift | 549 | Mythic Rare | $45.04 |
| Ketramose, the New DawnAetherdrift Promos · 209p | Aetherdrift Promos | 209p | Mythic Rare | $2.67 |
| Ketramose, the New DawnAetherdrift Promos · 209s | Aetherdrift Promos | 209s | Mythic Rare | €2.97 |
| KetriaMarch of the Machine Commander · 55 | March of the Machine Commander | 55 | Common | €0.63 |
| Ketria CrystalIkoria: Lair of Behemoths · 236 | Ikoria: Lair of Behemoths | 236 | Uncommon | €0.11 |
| Ketria TriomeIkoria: Lair of Behemoths · 250 | Ikoria: Lair of Behemoths | 250 | Rare | €11.78 |
| Ketria TriomeIkoria: Lair of Behemoths · 310 | Ikoria: Lair of Behemoths | 310 | Rare | €13.76 |
| Ketria TriomeIkoria: Lair of Behemoths Promos · 250p | Ikoria: Lair of Behemoths Promos | 250p | Rare | €14.72 |
| Ketria TriomeIkoria: Lair of Behemoths Promos · 250s | Ikoria: Lair of Behemoths Promos | 250s | Rare | €15.07 |
| Ketria TriomeThe List Tokens · IKO-250 | The List Tokens | IKO-250 | Rare | €15.76 |
| Ketria TriomeMagic Online Promos · 80951 | Magic Online Promos | 80951 | Rare | — |
| Kevin, Questing DragonUnknown Event · RR08a | Unknown Event | RR08a | Rare | $69.99 |
| Keymaster RogueGatecrash · 39 | Gatecrash | 39 | Common | €0.03 |
| Keymaster RogueRavnica Remastered · 47 | Ravnica Remastered | 47 | Common | €0.06 |
| Keys to the HouseDuskmourn: House of Horror · 251 | Duskmourn: House of Horror | 251 | Uncommon | €0.09 |
| Key to the ArchiveAlchemy: Innistrad · 59 | Alchemy: Innistrad | 59 | Rare | — |